ReplicationTaskStorage: Improve test coverage for isWaiting()

Add test cases to ReplicationTasksStorage.isWaiting() and
ReplicationTasksStorage.Task.isWaiting() methods. Also modify
existing testcases to use these new methods.

Change-Id: I032fb80a606a71bc3911d9ecb26ed738f074051f

src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTaskTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTaskTest.java b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTaskTest.java
index ca69644..178f125 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTaskTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTaskTest.java
@@ -347,11 +347,11 @@
   }
 
   private void assertIsWaiting(Task task) {
-    assertTrue(whiteBoxIsWaiting(task));
+    assertTrue(task.isWaiting());
   }
 
   private void assertNotWaiting(Task task) {
-    assertFalse(whiteBoxIsWaiting(task));
+    assertFalse(task.isWaiting());
   }
 
   private void assertIsRunning(Task task) {
@@ -366,10 +366,6 @@
     return Files.exists(task.running);
   }
 
-  private boolean whiteBoxIsWaiting(Task task) {
-    return Files.exists(task.waiting);
-  }
-
   public static URIish getUrish(String uri) {
     try {
       return new URIish(uri);

src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTest.java b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTest.java
index 0a92c76..faabc90 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/ReplicationTasksStorageTest.java
@@ -16,6 +16,7 @@
 
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertTrue;
 
@@ -71,10 +72,20 @@
   }
 
   @Test
+  public void canCheckIfUpdateIsWaiting() {
+    storage.create(REF_UPDATE);
+    assertTrue(storage.isWaiting(uriUpdates));
+
+    storage.start(uriUpdates);
+    assertFalse(storage.isWaiting(uriUpdates));
+  }
+
+  @Test
   public void canStartWaitingUpdate() throws Exception {
     storage.create(REF_UPDATE);
     storage.start(uriUpdates);
     assertThat(storage.listWaiting()).isEmpty();
+    assertFalse(storage.isWaiting(uriUpdates));
     assertContainsExactly(storage.listRunning(), REF_UPDATE);
   }
 
@@ -128,6 +139,8 @@
     String keyA = storage.create(REF_UPDATE);
     String keyB = storage.create(updateB);
     assertThat(storage.listWaiting()).hasSize(2);
+    assertTrue(storage.isWaiting(uriUpdates));
+    assertTrue(storage.isWaiting(TestUriUpdates.create(updateB)));
     assertNotEquals(keyA, keyB);
   }
 
@@ -187,6 +200,8 @@
     storage.create(REF_UPDATE);
     storage.create(updateB);
     assertThat(storage.listWaiting()).hasSize(2);
+    assertTrue(storage.isWaiting(uriUpdates));
+    assertTrue(storage.isWaiting(TestUriUpdates.create(updateB)));
   }
 
   @Test
@@ -198,6 +213,8 @@
     String keyB = storage.create(refB);
     assertThat(storage.listWaiting()).hasSize(2);
     assertNotEquals(keyA, keyB);
+    assertTrue(storage.isWaiting(TestUriUpdates.create(refA)));
+    assertTrue(storage.isWaiting(TestUriUpdates.create(refB)));
   }
 
   @Test
@@ -236,6 +253,7 @@
 
     storage.start(uriUpdates);
     assertContainsExactly(storage.listRunning(), REF_UPDATE);
+    assertFalse(storage.isWaiting(uriUpdates));
     assertThat(storage.listWaiting()).isEmpty();
 
     storage.finish(uriUpdates);
@@ -255,6 +273,7 @@
 
     storage.resetAll();
     assertContainsExactly(storage.listWaiting(), REF_UPDATE);
+    assertTrue(storage.isWaiting(uriUpdates));
     assertThat(storage.listRunning()).isEmpty();
   }
 
@@ -267,6 +286,7 @@
     storage.start(uriUpdates);
     assertContainsExactly(storage.listRunning(), REF_UPDATE);
     assertThat(storage.listWaiting()).isEmpty();
+    assertFalse(storage.isWaiting(uriUpdates));
 
     storage.finish(uriUpdates);
     assertNoIncompleteTasks(storage);